Amazon.com : Replacement Parts Compatible with Avent Comfort Pump, Valve, Diaphragm for Single and Double Electric Pumps; Made by Maymom : Baby
Amazon.com : Nenesupply 4 pc Duckbill Valves Compatible with Medela and Avent Pumps Not Original Medela Pump Parts Work with Medela Pump in Style Medela Symphony Replace Medela Valve Membrane and Avent